#!/usr/bin/env python
#HipPriest.py
#aLT's first PyGame Game from tutorial at Learning Python

import os, sys
import pygame
from pygame.locals import *
#from helpers import *

if not pygame.font: print 'Fonts not Loaded!'
if not pygame.mixer: print 'Sound not Loaded!'

def load_image(name, colorkey=None):
    fullname = os.path.join(name)
    try:
        image = pygame.image.load(fullname)
    except pygame.error, message:
        print 'Cannot load image:', name
        raise SystemExit, message
    image = image.convert()
    if colorkey is not None:
        if colorkey is -1:
            colorkey = image.get_at((0,0))
        image.set_colorkey(colorkey, RLEACCEL)
    return image, image.get_rect()

class Snake(pygame.sprite.Sprite):
    
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image, self.rect = load_image('apey.png',-1)
        self.pellets = 0
        self.x_dist = 15
        self.y_dist = 15
    
    def move(self, key):
        xMove = 0;
        yMove = 0;
    
        if (key == K_RIGHT):
            xMove = self.x_dist
        elif (key == K_LEFT):
            xMove = -self.x_dist
        elif (key == K_UP):
            yMove = -self.y_dist
        elif (key == K_DOWN):
            yMove = self.y_dist
        self.rect.move_ip(xMove,yMove);


class Pellet(pygame.sprite.Sprite):
    
    def __init__(self, rect=None):
        pygame.sprite.Sprite.__init__(self)
        self.image, self.rect = load_image('hippriest.png',-1)
        if rect != None:
            self.rect = rect

class PyManMain:
    
    def __init__(self, width=640, height=480):
        pygame.init()
        self.width = width
        self.height = height
        self.screen = pygame.display.set_mode((self.width, self.height))
    
    def MainLoop(self):
        self.LoadSprites()
        pygame.key.set_repeat(500, 30)
        
        self.background = pygame.Surface(self.screen.get_size())
        self.background = pygame.image.load('bgd.bmp')
        #self.background.fill((0,0,0))
        
        while 1:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    sys.exit()
                elif event.type == KEYDOWN:
                    if ((event.key == K_RIGHT) or (event.key == K_LEFT) or (event.key == K_UP) or (event.key == K_DOWN)):
                        self.snake.move(event.key)
            lstCols = pygame.sprite.spritecollide(self.snake, self.pellet_sprites, True)
            self.snake.pellets = self.snake.pellets + len(lstCols)
            self.screen.blit(self.background, (0, 0)) 
            if pygame.font:
                font = pygame.font.Font(None, 36)
                text = font.render("Hip Priests %s" % self.snake.pellets, 1, (255, 255, 255))
                textpos = text.get_rect(centerx=self.width/2)
                self.screen.blit(text, textpos)
            self.pellet_sprites.draw(self.screen)
            self.snake_sprites.draw(self.screen)
            pygame.display.flip()

    def LoadSprites(self):
        self.snake = Snake()
        self.snake_sprites = pygame.sprite.RenderPlain((self.snake))
        
        nNumHorizontal = int(self.width/64)
        nNumVertical = int(self.height/64)
        self.pellet_sprites = pygame.sprite.Group()
        for x in range(nNumHorizontal):
            for y in range(nNumVertical):
                self.pellet_sprites.add(Pellet(pygame.Rect(x*64, y*64, 64, 64)))
    
if __name__ == '__main__':
    MainWindow = PyManMain()
    MainWindow.MainLoop()